At the start of the last ice age, 2.6 million years ago, a sheet of frozen water formed atop North America that kept expanding and thickening until it reached a maximum depth of roughly 2 miles. At ...

A huge drop in sea levels trapped extremely salty water in the Indian Ocean, which then gushed into the Atlantic when currents changed 15,000 years ago. When you purchase through links on our site, we ...

Something strange is happening in the North Atlantic, and researchers say we may be witnessing a slow, yet dangerous, transformation of the planet’s climate system. A vast circulation of ocean waters, ...

The Mars Express orbiter has detected enough water ice buried beneath the Red Planet's equator to cover the entire planet in a shallow ocean if melted. When you purchase through links on our site, we ...